Displaying a bitmap from memory to a Dialog or CStatic

[Alphadan]

Dear Experts.

Im trying to Display BMP file, but that is stored in a buffer in memory I dont want to write it down to a file to re-open later im trying to find an elegant solution since I want to save system resources.

well I found this article but im not that experienced with Device contexts and HBitmaps.

I found this article at code guru:

http://www.codeguru.com/cpp/g-m/bitm...a-BMP-file.htm

it looks like exaclty what i need it loads it from a file but its ok i can modify that latter but my problem is that i dont quite understand it, for example:

void DrawDIB( CDC* pDC, HGLOBAL hDIB, CPalette *pPal )

this is the function that should draw the image but it receives a CDC* pDC what would be the difference with a HDC.

also how would i use this function to display that file to a CStatic or even the in the Dialog body would work for me.

Thx in Advance!!

[VictorN]

Maybe I have understood you not 100% correct, but if you want to dissplay a bitmap from some file on the static control you do:

1. Set the SS_BITMAP style to this static (or "picture") control
2. Load the bitmap from file using LoadImage API

   HBITMAP hBmp = (HBITMAP)LoadImage( NULL, szFileName, IMAGE_BITMAP, 0, 0,
                 LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADFROMFILE );

[Alphadan]

Maybe I have understood you not 100% correct, but if you want to dissplay a bitmap from some file on the static control you do:

1. Set the SS_BITMAP style to this static (or "picture") control
2. Load the bitmap from file using LoadImage API

   HBITMAP hBmp = (HBITMAP)LoadImage( NULL, szFileName, IMAGE_BITMAP, 0, 0,
                 LR_CREATEDIBSECTION | LR_DEFAULTSIZE | LR_LOADFROMFILE );

Then you use MFC method CStatic::SetBitmap or send the STM_SETIMAGE to set the bnitmap to the static control.

[juanpast]

Hi.

You must get the CDC in the OnPaint function and draw the image.

Best regards.

[VictorN]

juanpast is right!
you should derive your own class from CStatic, implement the WM_PAINT message handler in this derived class and use the device context (CPaintDC ) it provides for you.

[Alphadan]

thx gonna try it