how to assign a scaled bitmap into another bitmap(

Sir,

I want to assign a scaled bitmap into another bit map
how to do it.i have got a.net framework function which is working fime and i
need an alternative for it to make it working for .net compactframework.
************************************************************
scaledImg = new Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));

************************************************************

How can this be done.

regards

Naveem

Is this what you want?



Dim b As New Bitmap(x, y)

Dim g As Graphics = Graphics.FromImage(b)

g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
GraphicsUnit.Pixel)



"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
> Sir,
>
> I want to assign a scaled bitmap into another bit map
> how to do it.i have got a.net framework function which is working fime and
> i
> need an alternative for it to make it working for .net compactframework.
> ************************************************************
> scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>
> ************************************************************
>
> How can this be done.
>
> regards
>
> Naveem

No this is not the thing i want, i feel your are not able to get what i am
really asking for.

i have a function were image is scaled in .net frameworkthat function is
written as this
**********************************************************
were scale is 1.0;
scale = value;
Bitmap scaledImg = new
Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
convertToGrayScale();

**********************************************************
Now i want to write this function in comapct frame work . as from here the
value of width and height goes to convertto grayscale function which is like
this



************************************************************


protected void convertToGrayScale()
{
Color col;
int gray;
for (int l = 0; l<scaledImg.Width; l++)
for (int c = 0; c<scaledImg.Height; c++)
{
col = scaledImg.GetPixel(l,c);
gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));

}


}
***************************************************************

if i am passing like this in compactframework

**********************************************************
Bitmap scaledImg = new Bitmap(img);
*********************************************************
the values passing to convert to gray function are wrong.
so i hardly get correct results.

So please teelme alternative for this a.

Regards

Naveen

"Joseph Byrns" wrote:

> Is this what you want?
>
>
>
> Dim b As New Bitmap(x, y)
>
> Dim g As Graphics = Graphics.FromImage(b)
>
> g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
> GraphicsUnit.Pixel)
>
>
>
> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
> > Sir,
> >
> > I want to assign a scaled bitmap into another bit map
> > how to do it.i have got a.net framework function which is working fime and
> > i
> > need an alternative for it to make it working for .net compactframework.
> > ************************************************************
> > scaledImg = new
> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >
> > ************************************************************
> >
> > How can this be done.
> >
> > regards
> >
> > Naveem
>
>
>

The function I sent you will scale the bitmap for you, it is the only way to
do it the compact framework (without writing your own scaling code that is).

scale = value;
Bitmap img = ....; your original bitmap here
Bitmap scaledImg = new
Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
Graphics g = Graphics.FrimImage(scaledImg);
g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
Rectangle(0,0,img.Width,img.Height),
GraphicsUnit.Pixel)

convertToGrayScale();



"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
> No this is not the thing i want, i feel your are not able to get what i am
> really asking for.
>
> i have a function were image is scaled in .net frameworkthat function is
> written as this
> **********************************************************
> were scale is 1.0;
> scale = value;
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> convertToGrayScale();
>
> **********************************************************
> Now i want to write this function in comapct frame work . as from here the
> value of width and height goes to convertto grayscale function which is
> like
> this
>
>
>
> ************************************************************
>
>
> protected void convertToGrayScale()
> {
> Color col;
> int gray;
> for (int l = 0; l<scaledImg.Width; l++)
> for (int c = 0; c<scaledImg.Height; c++)
> {
> col = scaledImg.GetPixel(l,c);
> gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
> scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
>
> }
>
>
> }
> ***************************************************************
>
> if i am passing like this in compactframework
>
> **********************************************************
> Bitmap scaledImg = new Bitmap(img);
> *********************************************************
> the values passing to convert to gray function are wrong.
> so i hardly get correct results.
>
> So please teelme alternative for this a.
>
> Regards
>
> Naveen
>
> "Joseph Byrns" wrote:
>
>> Is this what you want?
>>
>>
>>
>> Dim b As New Bitmap(x, y)
>>
>> Dim g As Graphics = Graphics.FromImage(b)
>>
>> g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
>> GraphicsUnit.Pixel)
>>
>>
>>
>> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>> news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
>> > Sir,
>> >
>> > I want to assign a scaled bitmap into another bit map
>> > how to do it.i have got a.net framework function which is working fime
>> > and
>> > i
>> > need an alternative for it to make it working for .net
>> > compactframework.
>> > ************************************************************
>> > scaledImg = new
>> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>> >
>> > ************************************************************
>> >
>> > How can this be done.
>> >
>> > regards
>> >
>> > Naveem
>>
>>
>>

Sir the function you have sent me is not working, this part in the function
is not working as it shows error bitmap does not take three arguments,I have
tried it before also.for this function i need alternative
**********************************************************

Bitmap scaledImg = new
Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));


************************************************************
Regards

Naveen

scale = value;
Bitmap img = ....; your original bitmap here
Bitmap scaledImg = new
Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
"Joseph Byrns" wrote:

> The function I sent you will scale the bitmap for you, it is the only way to
> do it the compact framework (without writing your own scaling code that is).
>
> scale = value;
> Bitmap img = ....; your original bitmap here
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> Graphics g = Graphics.FrimImage(scaledImg);
> g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
> Rectangle(0,0,img.Width,img.Height),
> GraphicsUnit.Pixel)
>
> convertToGrayScale();
>
>
>
> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
> > No this is not the thing i want, i feel your are not able to get what i am
> > really asking for.
> >
> > i have a function were image is scaled in .net frameworkthat function is
> > written as this
> > **********************************************************
> > were scale is 1.0;
> > scale = value;
> > Bitmap scaledImg = new
> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> > convertToGrayScale();
> >
> > **********************************************************
> > Now i want to write this function in comapct frame work . as from here the
> > value of width and height goes to convertto grayscale function which is
> > like
> > this
> >
> >
> >
> > ************************************************************
> >
> >
> > protected void convertToGrayScale()
> > {
> > Color col;
> > int gray;
> > for (int l = 0; l<scaledImg.Width; l++)
> > for (int c = 0; c<scaledImg.Height; c++)
> > {
> > col = scaledImg.GetPixel(l,c);
> > gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
> > scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
> >
> > }
> >
> >
> > }
> > ***************************************************************
> >
> > if i am passing like this in compactframework
> >
> > **********************************************************
> > Bitmap scaledImg = new Bitmap(img);
> > *********************************************************
> > the values passing to convert to gray function are wrong.
> > so i hardly get correct results.
> >
> > So please teelme alternative for this a.
> >
> > Regards
> >
> > Naveen
> >
> > "Joseph Byrns" wrote:
> >
> >> Is this what you want?
> >>
> >>
> >>
> >> Dim b As New Bitmap(x, y)
> >>
> >> Dim g As Graphics = Graphics.FromImage(b)
> >>
> >> g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
> >> GraphicsUnit.Pixel)
> >>
> >>
> >>
> >> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> >> news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
> >> > Sir,
> >> >

> >> > I want to assign a scaled bitmap into another bit map
> >> > how to do it.i have got a.net framework function which is working fime
> >> > and
> >> > i
> >> > need an alternative for it to make it working for .net
> >> > compactframework.
> >> > ************************************************************
> >> > scaledImg = new
> >> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >> >
> >> > ************************************************************
> >> >
> >> > How can this be done.
> >> >
> >> > regards
> >> >
> >> > Naveem
> >>
> >>
> >>
>
>
>

There is no need to ask the same question twice. Christian Schwarz gave
you the idea yesterday. Here you are the complete list:

Bitmap scaledImg = ScaleBitmap(sourceBitmap, 0.5f, 0.5f);

....


public Bitmap ScaleBitmap(Bitmap src, float xscale, float yscale)
{
Bitmap res = new Bitmap((int)(src.Width*xscale),
(int)(src.Height*yscale));

using (Graphics g = Graphics.FromImage(res))
{
g.DrawImage(src, new Rectangle(0, 0, res.Width, res.Height), 0, 0,
src.Width, src.Height, GraphicsUnit.Pixel, new
System.Drawing.Imaging.ImageAttributes());
}

return res;
}

--
Sergey Bogdanov [.NET CF MVP, MCSD]
http://www.sergeybogdanov.com


Naveen koul wrote:
> Sir the function you have sent me is not working, this part in the function
> is not working as it shows error bitmap does not take three arguments,I have
> tried it before also.for this function i need alternative
> **********************************************************
>
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>
>
> ************************************************************
> Regards
>
> Naveen
>
> scale = value;
> Bitmap img = ....; your original bitmap here
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> "Joseph Byrns" wrote:
>
>
>>The function I sent you will scale the bitmap for you, it is the only way to
>>do it the compact framework (without writing your own scaling code that is).
>>
>>scale = value;
>>Bitmap img = ....; your original bitmap here
>>Bitmap scaledImg = new
>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>Graphics g = Graphics.FrimImage(scaledImg);
>>g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
>>Rectangle(0,0,img.Width,img.Height),
>>GraphicsUnit.Pixel)
>>
>>convertToGrayScale();
>>
>>
>>
>>"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>>news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
>>
>>>No this is not the thing i want, i feel your are not able to get what i am
>>>really asking for.
>>>
>>>i have a function were image is scaled in .net frameworkthat function is
>>>written as this
>>>**********************************************************
>>>were scale is 1.0;
>>>scale = value;
>>>Bitmap scaledImg = new
>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>convertToGrayScale();
>>>
>>>**********************************************************
>>>Now i want to write this function in comapct frame work . as from here the
>>>value of width and height goes to convertto grayscale function which is
>>>like
>>>this
>>>
>>>
>>>
>>>************************************************************
>>>
>>>
>>>protected void convertToGrayScale()
>>>{
>>>Color col;
>>>int gray;
>>>for (int l = 0; l<scaledImg.Width; l++)
>>>for (int c = 0; c<scaledImg.Height; c++)
>>>{
>>>col = scaledImg.GetPixel(l,c);
>>>gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
>>>scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
>>>
>>>}
>>>
>>>
>>>}
>>>***************************************************************
>>>
>>>if i am passing like this in compactframework
>>>
>>>**********************************************************
>>>Bitmap scaledImg = new Bitmap(img);
>>>*********************************************************
>>>the values passing to convert to gray function are wrong.
>>>so i hardly get correct results.
>>>
>>>So please teelme alternative for this a.
>>>
>>>Regards
>>>
>>>Naveen
>>>
>>>"Joseph Byrns" wrote:
>>>
>>>
>>>>Is this what you want?
>>>>
>>>>
>>>>
>>>>Dim b As New Bitmap(x, y)
>>>>
>>>>Dim g As Graphics = Graphics.FromImage(b)
>>>>
>>>>g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
>>>>GraphicsUnit.Pixel)
>>>>
>>>>
>>>>
>>>>"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>>>>news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
>>>>
>>>>>Sir,
>>>>>
>
>
>>>>>I want to assign a scaled bitmap into another bit map
>>>>>how to do it.i have got a.net framework function which is working fime
>>>>>and
>>>>>i
>>>>>need an alternative for it to make it working for .net
>>>>>compactframework.
>>>>>************************************************************
>>>>>scaledImg = new
>>>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>>>
>>>>>************************************************************
>>>>>
>>>>>How can this be done.
>>>>>
>>>>>regards
>>>>>
>>>>>Naveem
>>>>
>>>>
>>>>
>>
>>

Sir,

Yes there was no question of posting the post twice , but the question in
both post is different . in first post i forgot to mention that i dont want
to draw image . I want to copy the bitmap ,
Again i am repeating the question. i dont want to draw the image i want to
copy the bitmap.

i hope my query will be bit clear now.

Regards

Naveen
"Sergey Bogdanov" wrote

> There is no need to ask the same question twice. Christian Schwarz gave
> you the idea yesterday. Here you are the complete list:
>
> Bitmap scaledImg = ScaleBitmap(sourceBitmap, 0.5f, 0.5f);
>
> ....
>
>
> public Bitmap ScaleBitmap(Bitmap src, float xscale, float yscale)
> {
> Bitmap res = new Bitmap((int)(src.Width*xscale),
> (int)(src.Height*yscale));
>
> using (Graphics g = Graphics.FromImage(res))
> {
> g.DrawImage(src, new Rectangle(0, 0, res.Width, res.Height), 0, 0,
> src.Width, src.Height, GraphicsUnit.Pixel, new
> System.Drawing.Imaging.ImageAttributes());
> }
>
> return res;
> }
>
> --
> Sergey Bogdanov [.NET CF MVP, MCSD]
> http://www.sergeybogdanov.com
>
>
> Naveen koul wrote:
> > Sir the function you have sent me is not working, this part in the function
> > is not working as it shows error bitmap does not take three arguments,I have
> > tried it before also.for this function i need alternative
> > **********************************************************
> >
> > Bitmap scaledImg = new
> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >
> >
> > ************************************************************
> > Regards
> >
> > Naveen
> >
> > scale = value;
> > Bitmap img = ....; your original bitmap here
> > Bitmap scaledImg = new
> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> > "Joseph Byrns" wrote:
> >
> >
> >>The function I sent you will scale the bitmap for you, it is the only way to
> >>do it the compact framework (without writing your own scaling code that is).
> >>
> >>scale = value;
> >>Bitmap img = ....; your original bitmap here
> >>Bitmap scaledImg = new
> >>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >>Graphics g = Graphics.FrimImage(scaledImg);
> >>g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
> >>Rectangle(0,0,img.Width,img.Height),
> >>GraphicsUnit.Pixel)
> >>
> >>convertToGrayScale();
> >>
> >>
> >>
> >>"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> >>news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
> >>
> >>>No this is not the thing i want, i feel your are not able to get what i am
> >>>really asking for.
> >>>
> >>>i have a function were image is scaled in .net frameworkthat function is
> >>>written as this
> >>>**********************************************************
> >>>were scale is 1.0;
> >>>scale = value;
> >>>Bitmap scaledImg = new
> >>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >>>convertToGrayScale();
> >>>
> >>>**********************************************************
> >>>Now i want to write this function in comapct frame work . as from here the
> >>>value of width and height goes to convertto grayscale function which is
> >>>like
> >>>this
> >>>
> >>>
> >>>
> >>>************************************************************
> >>>
> >>>
> >>>protected void convertToGrayScale()
> >>>{
> >>>Color col;
> >>>int gray;
> >>>for (int l = 0; l<scaledImg.Width; l++)
> >>>for (int c = 0; c<scaledImg.Height; c++)
> >>>{
> >>>col = scaledImg.GetPixel(l,c);
> >>>gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
> >>>scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
> >>>
> >>>}
> >>>
> >>>
> >>>}
> >>>***************************************************************
> >>>
> >>>if i am passing like this in compactframework
> >>>
> >>>**********************************************************
> >>>Bitmap scaledImg = new Bitmap(img);
> >>>*********************************************************
> >>>the values passing to convert to gray function are wrong.
> >>>so i hardly get correct results.
> >>>
> >>>So please teelme alternative for this a.
> >>>
> >>>Regards
> >>>
> >>>Naveen
> >>>
> >>>"Joseph Byrns" wrote:
> >>>
> >>>
> >>>>Is this what you want?
> >>>>
> >>>>
> >>>>
> >>>>Dim b As New Bitmap(x, y)
> >>>>
> >>>>Dim g As Graphics = Graphics.FromImage(b)
> >>>>
> >>>>g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
> >>>>GraphicsUnit.Pixel)
> >>>>
> >>>>
> >>>>
> >>>>"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> >>>>news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
> >>>>
> >>>>>Sir,
> >>>>>
> >
> >
> >>>>>I want to assign a scaled bitmap into another bit map
> >>>>>how to do it.i have got a.net framework function which is working fime
> >>>>>and
> >>>>>i
> >>>>>need an alternative for it to make it working for .net
> >>>>>compactframework.
> >>>>>************************************************************
> >>>>>scaledImg = new
> >>>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >>>>>
> >>>>>************************************************************
> >>>>>
> >>>>>How can this be done.
> >>>>>
> >>>>>regards
> >>>>>
> >>>>>Naveem
> >>>>
> >>>>
> >>>>
> >>
> >>
>

The code snippet from the previous post does exactly what you are
looking for. Just try to invoke this method - it will return a copy of
Bitmap.

I believe, I understand where you stick. The Graphics.FromImage returns
something like of "Device Context" for a given Bitmap. This context is
used for copying one Bitmap to another by using the Draw method. It
doesn't display a Bitmap, it just makes an copy.

Again, just test it.

--
Sergey Bogdanov [.NET CF MVP, MCSD]
http://www.sergeybogdanov.com


Naveen koul wrote:
> Sir,
>
> Yes there was no question of posting the post twice , but the question in
> both post is different . in first post i forgot to mention that i dont want
> to draw image . I want to copy the bitmap ,
> Again i am repeating the question. i dont want to draw the image i want to
> copy the bitmap.
>
> i hope my query will be bit clear now.
>
> Regards
>
> Naveen
> "Sergey Bogdanov" wrote
>
>
>>There is no need to ask the same question twice. Christian Schwarz gave
>>you the idea yesterday. Here you are the complete list:
>>
>>Bitmap scaledImg = ScaleBitmap(sourceBitmap, 0.5f, 0.5f);
>>
>>....
>>
>>
>>public Bitmap ScaleBitmap(Bitmap src, float xscale, float yscale)
>>{
>> Bitmap res = new Bitmap((int)(src.Width*xscale),
>> (int)(src.Height*yscale));
>>
>> using (Graphics g = Graphics.FromImage(res))
>> {
>> g.DrawImage(src, new Rectangle(0, 0, res.Width, res.Height), 0, 0,
>> src.Width, src.Height, GraphicsUnit.Pixel, new
>>System.Drawing.Imaging.ImageAttributes());
>> }
>>
>> return res;
>>}
>>
>>--
>>Sergey Bogdanov [.NET CF MVP, MCSD]
>>http://www.sergeybogdanov.com
>>
>>
>>Naveen koul wrote:
>>
>>>Sir the function you have sent me is not working, this part in the function
>>>is not working as it shows error bitmap does not take three arguments,I have
>>>tried it before also.for this function i need alternative
>>>**********************************************************
>>>
>>>Bitmap scaledImg = new
>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>
>>>
>>>************************************************************
>>>Regards
>>>
>>>Naveen
>>>
>>>scale = value;
>>>Bitmap img = ....; your original bitmap here
>>>Bitmap scaledImg = new
>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>"Joseph Byrns" wrote:
>>>
>>>
>>>
>>>>The function I sent you will scale the bitmap for you, it is the only way to
>>>>do it the compact framework (without writing your own scaling code that is).
>>>>
>>>>scale = value;
>>>>Bitmap img = ....; your original bitmap here
>>>>Bitmap scaledImg = new
>>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>>Graphics g = Graphics.FrimImage(scaledImg);
>>>>g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
>>>>Rectangle(0,0,img.Width,img.Height),
>>>>GraphicsUnit.Pixel)
>>>>
>>>>convertToGrayScale();
>>>>
>>>>
>>>>
>>>>"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>>>>news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
>>>>
>>>>
>>>>>No this is not the thing i want, i feel your are not able to get what i am
>>>>>really asking for.
>>>>>
>>>>>i have a function were image is scaled in .net frameworkthat function is
>>>>>written as this
>>>>>**********************************************************
>>>>>were scale is 1.0;
>>>>>scale = value;
>>>>>Bitmap scaledImg = new
>>>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>>>convertToGrayScale();
>>>>>
>>>>>**********************************************************
>>>>>Now i want to write this function in comapct frame work . as from here the
>>>>>value of width and height goes to convertto grayscale function which is
>>>>>like
>>>>>this
>>>>>
>>>>>
>>>>>
>>>>>************************************************************
>>>>>
>>>>>
>>>>>protected void convertToGrayScale()
>>>>>{
>>>>>Color col;
>>>>>int gray;
>>>>>for (int l = 0; l<scaledImg.Width; l++)
>>>>>for (int c = 0; c<scaledImg.Height; c++)
>>>>>{
>>>>>col = scaledImg.GetPixel(l,c);
>>>>>gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
>>>>>scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
>>>>>
>>>>>}
>>>>>
>>>>>
>>>>>}
>>>>>***************************************************************
>>>>>
>>>>>if i am passing like this in compactframework
>>>>>
>>>>>**********************************************************
>>>>>Bitmap scaledImg = new Bitmap(img);
>>>>>*********************************************************
>>>>>the values passing to convert to gray function are wrong.
>>>>>so i hardly get correct results.
>>>>>
>>>>>So please teelme alternative for this a.
>>>>>
>>>>>Regards
>>>>>
>>>>>Naveen
>>>>>
>>>>>"Joseph Byrns" wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Is this what you want?
>>>>>>
>>>>>>
>>>>>>
>>>>>>Dim b As New Bitmap(x, y)
>>>>>>
>>>>>>Dim g As Graphics = Graphics.FromImage(b)
>>>>>>
>>>>>>g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
>>>>>>GraphicsUnit.Pixel)
>>>>>>
>>>>>>
>>>>>>
>>>>>>"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>>>>>>news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
>>>>>>
>>>>>>
>>>>>>>Sir,
>>>>>>>
>>>
>>>
>>>>>>>I want to assign a scaled bitmap into another bit map
>>>>>>>how to do it.i have got a.net framework function which is working fime
>>>>>>>and
>>>>>>>i
>>>>>>>need an alternative for it to make it working for .net
>>>>>>>compactframework.
>>>>>>>************************************************************
>>>>>>>scaledImg = new
>>>>>>>Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>>>>>>>
>>>>>>>************************************************************
>>>>>>>
>>>>>>>How can this be done.
>>>>>>>
>>>>>>>regards
>>>>>>>
>>>>>>>Naveem
>>>>>>
>>>>>>
>>>>>>
>>>>

Yes sorry, the line:

Bitmap scaledImg = new
Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));

in the example I sent should be:

Bitmap scaledImg = new
Bitmap((int)(img.Width*scale),(int)(img.Height*scale));


The scaling is done below that line in the g.DrawImage(...)


"Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
news:946A2BE5-08FE-4EAD-9BD5-33731AA853B9@microsoft.com...
>
> Sir the function you have sent me is not working, this part in the
> function
> is not working as it shows error bitmap does not take three arguments,I
> have
> tried it before also.for this function i need alternative
> **********************************************************
>
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>
>
> ************************************************************
> Regards
>
> Naveen
>
> scale = value;
> Bitmap img = ....; your original bitmap here
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> "Joseph Byrns" wrote:
>
>> The function I sent you will scale the bitmap for you, it is the only way
>> to
>> do it the compact framework (without writing your own scaling code that
>> is).
>>
>> scale = value;
>> Bitmap img = ....; your original bitmap here
>> Bitmap scaledImg = new
>> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>> Graphics g = Graphics.FrimImage(scaledImg);
>> g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
>> Rectangle(0,0,img.Width,img.Height),
>> GraphicsUnit.Pixel)
>>
>> convertToGrayScale();
>>
>>
>>
>> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>> news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
>> > No this is not the thing i want, i feel your are not able to get what i
>> > am
>> > really asking for.
>> >
>> > i have a function were image is scaled in .net frameworkthat function
>> > is
>> > written as this
>> > **********************************************************
>> > were scale is 1.0;
>> > scale = value;
>> > Bitmap scaledImg = new
>> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>> > convertToGrayScale();
>> >
>> > **********************************************************
>> > Now i want to write this function in comapct frame work . as from here
>> > the
>> > value of width and height goes to convertto grayscale function which is
>> > like
>> > this
>> >
>> >
>> >
>> > ************************************************************
>> >
>> >
>> > protected void convertToGrayScale()
>> > {
>> > Color col;
>> > int gray;
>> > for (int l = 0; l<scaledImg.Width; l++)
>> > for (int c = 0; c<scaledImg.Height; c++)
>> > {
>> > col = scaledImg.GetPixel(l,c);
>> > gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
>> > scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
>> >
>> > }
>> >
>> >
>> > }
>> > ***************************************************************
>> >
>> > if i am passing like this in compactframework
>> >
>> > **********************************************************
>> > Bitmap scaledImg = new Bitmap(img);
>> > *********************************************************
>> > the values passing to convert to gray function are wrong.
>> > so i hardly get correct results.
>> >
>> > So please teelme alternative for this a.
>> >
>> > Regards
>> >
>> > Naveen
>> >
>> > "Joseph Byrns" wrote:
>> >
>> >> Is this what you want?
>> >>
>> >>
>> >>
>> >> Dim b As New Bitmap(x, y)
>> >>
>> >> Dim g As Graphics = Graphics.FromImage(b)
>> >>
>> >> g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
>> >> GraphicsUnit.Pixel)
>> >>
>> >>
>> >>
>> >> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
>> >> news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
>> >> > Sir,
>> >> >
>
>> >> > I want to assign a scaled bitmap into another bit map
>> >> > how to do it.i have got a.net framework function which is working
>> >> > fime
>> >> > and
>> >> > i
>> >> > need an alternative for it to make it working for .net
>> >> > compactframework.
>> >> > ************************************************************
>> >> > scaledImg = new
>> >> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>> >> >
>> >> > ************************************************************
>> >> >
>> >> > How can this be done.
>> >> >
>> >> > regards
>> >> >
>> >> > Naveem
>> >>
>> >>
>> >>
>>
>>
>>

Sir,

I tried the same thing , but when the cursor goes to the convert to grey
scale function . it gives error moves to catch.were if i see img valur it
shows up unfedined.

i am giving the fragments of code
************************************************************
First it loads the image from here this function
private void radioButton1_CheckedChanged(object sender, System.EventArgs e)
{
try
{
img = new PMImage("\\Naveen.jpg");

}
catch {}
if (img != null)
{
matchs = n.search(img);

}
}
**********************************************************
After this function it goes to to the scaling function

public float Scale
{

set
{
scale = 1.0;
Bitmap scaledImg = ScaleBitmap(img, 0.5f, 0.5f);
convertToGrayScale();
}
}
**********************************************************
From this function it enters the ScaleBitmap function which was provided by
you

public Bitmap ScaleBitmap(Bitmap src, float xscale, float yscale)
{
Bitmap res = new Bitmap((int)(src.Width*xscale),(int)(src.Height*yscale));
using (Graphics g = Graphics.FromImage(res))
{
g.DrawImage(src, new Rectangle(0, 0, res.Width, res.Height), 0, 0,
src.Width, src.Height, GraphicsUnit.Pixel, new
System.Drawing.Imaging.ImageAttributes());
}
return res;
}
**********************************************************
from return res function goes back to Bitmap scaledImg, from there when the
function goes to convertToGrayScale(), from there the dubigguer moves to
catch m and when it checks the if condition it founds the img value
=undefined, so come out it and just hang up.


I hope i am more clear this time

Regards

naveen


"Joseph Byrns" wrote:

> Yes sorry, the line:
>
> Bitmap scaledImg = new
> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
>
> in the example I sent should be:
>
> Bitmap scaledImg = new
> Bitmap((int)(img.Width*scale),(int)(img.Height*scale));
>
>
> The scaling is done below that line in the g.DrawImage(...)
>
>
> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> news:946A2BE5-08FE-4EAD-9BD5-33731AA853B9@microsoft.com...
> >
> > Sir the function you have sent me is not working, this part in the
> > function
> > is not working as it shows error bitmap does not take three arguments,I
> > have
> > tried it before also.for this function i need alternative
> > **********************************************************
> >
> > Bitmap scaledImg = new
> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >
> >
> > ************************************************************
> > Regards
> >
> > Naveen
> >
> > scale = value;
> > Bitmap img = ....; your original bitmap here
> > Bitmap scaledImg = new
> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> > "Joseph Byrns" wrote:
> >
> >> The function I sent you will scale the bitmap for you, it is the only way
> >> to
> >> do it the compact framework (without writing your own scaling code that
> >> is).
> >>
> >> scale = value;
> >> Bitmap img = ....; your original bitmap here
> >> Bitmap scaledImg = new
> >> Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >> Graphics g = Graphics.FrimImage(scaledImg);
> >> g.DrawImage(img, new Rectangle(0,0,scaledImg.Width,scaledImg.Height), new
> >> Rectangle(0,0,img.Width,img.Height),
> >> GraphicsUnit.Pixel)
> >>
> >> convertToGrayScale();
> >>
> >>
> >>
> >> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> >> news:B6AD9ACC-A511-4E34-8BC2-A418353348C5@microsoft.com...
> >> > No this is not the thing i want, i feel your are not able to get what i
> >> > am
> >> > really asking for.
> >> >
> >> > i have a function were image is scaled in .net frameworkthat function
> >> > is
> >> > written as this
> >> > **********************************************************
> >> > were scale is 1.0;
> >> > scale = value;
> >> > Bitmap scaledImg = new
> >> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >> > convertToGrayScale();
> >> >
> >> > **********************************************************
> >> > Now i want to write this function in comapct frame work . as from here
> >> > the
> >> > value of width and height goes to convertto grayscale function which is
> >> > like
> >> > this
> >> >
> >> >
> >> >
> >> > ************************************************************
> >> >
> >> >
> >> > protected void convertToGrayScale()
> >> > {
> >> > Color col;
> >> > int gray;
> >> > for (int l = 0; l<scaledImg.Width; l++)
> >> > for (int c = 0; c<scaledImg.Height; c++)
> >> > {
> >> > col = scaledImg.GetPixel(l,c);
> >> > gray = (int)(0.32f * col.R + 0.5f * col.G + 0.18f* col.B);
> >> > scaledImg.SetPixel(l,c,Color.FromArgb(gray, gray, gray));
> >> >
> >> > }
> >> >
> >> >
> >> > }
> >> > ***************************************************************
> >> >
> >> > if i am passing like this in compactframework
> >> >
> >> > **********************************************************
> >> > Bitmap scaledImg = new Bitmap(img);
> >> > *********************************************************
> >> > the values passing to convert to gray function are wrong.
> >> > so i hardly get correct results.
> >> >
> >> > So please teelme alternative for this a.
> >> >
> >> > Regards
> >> >
> >> > Naveen
> >> >
> >> > "Joseph Byrns" wrote:
> >> >
> >> >> Is this what you want?
> >> >>
> >> >>
> >> >>
> >> >> Dim b As New Bitmap(x, y)
> >> >>
> >> >> Dim g As Graphics = Graphics.FromImage(b)
> >> >>
> >> >> g.DrawImage(AnotherBitmap, destinationRectangle, SourceRectangle,
> >> >> GraphicsUnit.Pixel)
> >> >>
> >> >>
> >> >>
> >> >> "Naveen koul" <Naveenkoul@discussions.microsoft.com> wrote in message
> >> >> news613F3FA-A570-4EFB-9BE6-45E8AFBBCF9D@microsoft.com...
> >> >> > Sir,
> >> >> >
> >
> >> >> > I want to assign a scaled bitmap into another bit map
> >> >> > how to do it.i have got a.net framework function which is working
> >> >> > fime
> >> >> > and
> >> >> > i
> >> >> > need an alternative for it to make it working for .net
> >> >> > compactframework.
> >> >> > ************************************************************
> >> >> > scaledImg = new
> >> >> > Bitmap(img,(int)(img.Width*scale),(int)(img.Height*scale));
> >> >> >
> >> >> > ************************************************************
> >> >> >
> >> >> > How can this be done.
> >> >> >
> >> >> > regards
> >> >> >
> >> >> > Naveem
> >> >>
> >> >>
> >> >>
> >>
> >>
> >>
>
>
>