Guest GoSu.SpeeD Posted November 28, 2008 Here is an example i coded for a friend to show him how to draw a square on your desktop. /* Example of using setpixel to draw a square on your desktop By GoSu.SpeeD/Akimoko/Shoxin/Encrypt. and many other aliases compile: gcc.exe square.c -o square.exe -lgdi32 */ #include <windows.h> int main() { int x = 729; // X co-ord. to start at int y = 507; // Y co-ord. to start at int r = 255; // RGB VALUE FOR WHITE int g = 255; // RGB VALUE FOR WHITE int b = 255; // RGB VALUE FOR WHITE int XCount = 0; int YCount = 0; HDC Hdc = GetDC(HWND_DESKTOP); // Retrieve a handle for our desktop sleep(5000); // Give our user time to minimize and switch to the desktop while(1) { SetPixel(Hdc, x++, y, RGB (r, g, b)); // Increasing pixel length every loop sleep(1); XCount++; if (XCount == 100) // When we have a line 100 pixels in width { while(1) { SetPixel(Hdc, x, y++, RGB (r, g, b)); sleep(1); YCount++; if (YCount == 100) // When we have a line with 100 pixels in height { while(1) { SetPixel(Hdc, x--, y, RGB (r, g, b)); // Going back toward the original X Co-ord sleep(1); XCount--; if (XCount == 0) // When our we return to the same X Co-ord { while(1) { SetPixel(Hdc, x, y--, RGB (r, g, b)); sleep(1); YCount--; if (YCount == 0) // Complete the Square { sleep(5000); // wait 5 seconds so the user can see the results ReleaseDC (HWND_DESKTOP, Hdc); // Release Device Content return 0; } } } } } } } } } Go to top Share this post Link to post
