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Win32 prog memory leak?

Zyroth · 2002-07-17T03:42:44

Hi, I''ve been trying to find the error in my program for the last two an a half hours. After drawing the bitmaps some number of times it just won''t draw them anymore and all I get is the background brush color. It sounds like it might be a memory leak, but I''m new to windows programming and can''t seem to figure it out. Here''s the code: int ShowBitmapResource(HDC hDestDC, int xDest, int yDest, int nResID) { HDC hSrcDC; // source DC - memory device context HBITMAP hbitmap; // handle to the bitmap resource BITMAP bmp; // structure for bitmap info int nHeight, nWidth; // bitmap dimensions // first load the bitmap resource if ((hbitmap = (HBITMAP)LoadImage(appInstance, MAKEINTRESOURCE(nResID), IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION)) == NULL) return(FALSE); // create a DC for the bitmap to use if ((hSrcDC = CreateCompatibleDC(NULL)) == NULL) return(FALSE); // select the bitmap into the DC if (SelectObject(hSrcDC, hbitmap) == NULL) return(FALSE); // get image dimensions if (GetObject(hbitmap, sizeof(BITMAP), &bmp) == 0) return(FALSE); nWidth = bmp.bmWidth; nHeight = bmp.bmHeight; // copy image from one DC to the other if (BitBlt(hDestDC, xDest, yDest, nWidth, nHeight, hSrcDC, 0, 0, SRCCOPY) == NULL) return(FALSE); // kill the memory DC DeleteDC(hSrcDC); // return success! return(TRUE); } Now the code prety much comes directly from the Game Programming Genesis Articles. If someone could PLEASE take a quick look thru the code, I would greatly appriciate it. I''m sure that its some small stupid mistake.

General and Gameplay Programming Programming

Started by Zyroth July 15, 2002 07:26 PM

11 comments, last by Zyroth 21 years, 9 months ago

SilentCoder

122

July 16, 2002 12:34 AM

Make sure the bitmap is not selected in the device context when you delete it.

nicho_tedja

122

July 17, 2002 01:50 AM

quote:Original post by Invader X
I understand English is not your first language so I assume you didn''t notice that my verb ''delete'' was in the past tense. My answer was almost the same as yours, you just posted at almost the same time.

lol, I thought it was a typo. sorry.

My compiler generates one error message: "does not compile."

Colin Jeanne

1,115

July 17, 2002 03:42 AM

quote:Original post by nicho_tedja
lol, I thought it was a typo. sorry.

No problem

I will not make a list of links... I will not make a list of links... I will not make a list of links...
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Win32 prog memory leak?

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