Rotation of a image

[s4_sabahatf]

hi i want to ask that if there exit any function through which we can rotate image in c#. i used the functions rotateTransform( , ,) and RotateAt(, ,) but the problem with these functions is that it create multiple data of the that image i want to rotate the text from the image thanx in advance

[Christian Graus]

s4_sabahatf wrote:

ut the problem with these functions is that it create multiple data of the that image

It creates a copy, yes.  You can also set a rotate transform on your Graphics object, and so render the bitmap rotated, without ever rotating it.

s4_sabahatf wrote:

i want to rotate the text from the image

You want to render text that is rotated on an image ? Well, you just need to set the rotation and translation on the graphics object, and you can draw your text that way.

Christian Graus - C++ MVP

[s4_sabahatf]

ya i m using the graphics object by overridng the paint method but still it creates mulipte copies then what shud i do??

[Christian Graus]

I'm not sure what you mean by 'multiple copies' ? Do you have a memory leak ? You can't rotate an image in place, you can't rotate it without making a copy.  Doing it in your paint method makes a copy direct to the DC, and so costs nothing.

Christian Graus - C++ MVP

[s4_sabahatf]

no no !!i dnt mean that for memory let me expalin u suppose i hav a image having text "SIg" when i apply roation to that image it writes multiple times "Sig" "sig" on same image.it make partitions of that image .which creates problem

[Christian Graus]

OK, that's because your code is wrong, obviously.  Post your code.

Christian Graus - C++ MVP

[s4_sabahatf]

now i solved my poblem by using DrawImage method,but now i m suffering from another problem that how will i change g.DrawImage(, ,) into bitmap?

[Christian Graus]

Build the graphics object from a bitmap ( Graphics.FromImage ), then call that method to draw onto it.

Christian Graus - C++ MVP