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iPromise
Grandmaster Cheater
![]() Reputation: -1
Joined: 27 Jun 2009
Posts: 529
Location: Canada
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 Posted: Sun May 16, 2010 11:57 am Post subject: Double Buffering Technique |
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Hey guys,
So i've learned and understand how this method works, and I got it working myself. The only problem I have is the bitmap I create, it contains a black background so when I attempt to draw on my DC and display with BitBlt it shows the black background with the things I drew. So I thought maybe instead of creating a bitmap receive a bitmap to use, that way I won't have to worry about fixing this problem. But that attempt didn't work because I couldn't find any functions to receive a Bitmap from let it be a HWND, or DC.
| Code: |
#include <Windows.h>
void main()
{
int Width, Height;
Width = 300;
Height = 300;
HWND hWnd = FindWindowA(NULL, "Untitled - Notepad");
HDC hDC = GetDC(hWnd);
HDC MemDC = CreateCompatibleDC(hDC);
HBITMAP hBitmap = CreateCompatibleBitmap(hDC, Width, Height);
SelectObject(MemDC, hBitmap);
while (1)
{
TextOutA(MemDC, 10, 10, "iPromise", strlen("iPromise"));
BitBlt(hDC, 0, 0, Width, Height, MemDC, 0, 0, SRCCOPY);
}
DeleteDC(hDC);
DeleteDC(MemDC);
DeleteObject(hBitmap);
}
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My question is how can I change the background color of the bitmap so its transparent?
Another question is, is BitBlt() hooked in anyway by GameGuard or Hackshield?
Thanks,
iPromise.
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hcavolsdsadgadsg
I'm a spammer
![]() Reputation: 26
Joined: 11 Jun 2007
Posts: 5801
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| Posted: Sun May 16, 2010 5:51 pm Post subject: |
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If you're trying to draw over another game, don't bother. You're going to get flicker as you have no notion of synchronization with its framerate. By solving this, you'll already be at the point where you might as well just use the games own renderer.
As far transparency, I'm not sure of a nice, clean way to do it. Maybe look into using a mask for it, or you can use blit the region of the screen your window is over to your own surface to create the illusion
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