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Drawing Lines
Posted by putang1080 [send private reply] at June 24, 2001, 02:46:35 PM
Hey, i finally got a window!!! newayz, now i want to draw lines, here's my code: HPEN pen_1 = CreatePen(PS_SOLID, 1, RGB(0, 225, 0));
SelectObject(hdc, pen_1); HBRUSH brush_1 = CreateSolidBrush(RGB(0, 0, 255)); MoveToEx(hdc, 10, 20, NULL); LineTo(hdc, 150, 150); LineTo(hdc, 50, 100); Ellipse(hdc, 90, 90, 100, 100); SetPixel(hdc, 50, 60, RGB(255, 0, 0)); DeleteObject(pen_1); nothing shows up....... i guess there's supposed to be a triange, and a circle, i just took the code from a book(well, i took several snippets of code at once to see whatd happen.) Its in the main event handle. i still get a window, but nothing inside. i don't xactly know where to place it, right now its at the end of the main event handle. If u have or are reading game programming for dummies by andre lamothe, its in chap. 5.
Posted by putang1080 [send private reply] at June 24, 2001, 05:16:17 PM
i figured it out, sometimes my brains dead. i had to put it in the case WM_PAINT statement. Anyways, now i just figured out how to draw lines, ellipses, and rectangles, but i don't get text: proportioned or fixed pitch.
Posted by nt543 [send private reply] at August 17, 2001, 12:35:04 PM
Use this code in your message handler:
LRESULT WndProc(HWND hWnd, UINT iMsg, WPARAM wParam, LPARAM lParam) {
Posted by nt543 [send private reply] at August 17, 2001, 12:38:58 PM
Use this code in your message handler:
LRESULT WndProc(HWND hWnd, UINT iMsg, WPARAM wParam, LPARAM lParam) { HDC hDC = 0; PAINTSTRUCT ps; switch(iMsg) { case WM_PAINT: { hDC = BeginPaint(hWnd, &ps); if(hDC) { /* Do painting with hDC here */ EndPaint(hWnd, &ps); hDC = 0; /* be safe */ } } /* Handle other messages */ case WM_DESTROY: PostQuitMessage(0); return(0); default: break; } return(DefWindowProc(hWnd, iMsg, wParam, lParam)); }
Posted by eternaldisciple [send private reply] at August 17, 2001, 02:09:13 PM
2 month old topic
Posted by TheTutor [send private reply] at August 19, 2001, 11:35:07 AM
Quick thing -- When you do this, make sure you save off the HPEN that was selected into the device context, otherwise all the memory may not be freed
HPEN hpen = CreatePen(...); HPEN old_pen = SelectObject(hdc,hpen); // Draw and stuff SelectObject(hdc,old_pen); DeleteObject(hpen);
Posted by taubz [send private reply] at August 18, 2001, 05:36:01 PM
Your followup was *completely* unnecessary...
Posted by TheTutor [send private reply] at August 18, 2001, 06:02:02 PM
If you don't care about releasing memory it was
Posted by CHollman82 [send private reply] at October 01, 2001, 09:56:57 PM
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