push button

[ask_you]

i have created a push button using Create Window. Now 1. how do i write text on the button? 2. how do i handle the button WM_COMMAND? the code snippet is: WNDCLASS wc; memset(&wc, 0, sizeof(WNDCLASS)); wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = (WNDPROC) WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = GetModuleHandle(NULL); wc.hIcon = LoadIcon(NULL, IDI_WINLOGO); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH); wc.lpszClassName = "WndClassName"; if(!RegisterClass(&wc)) { MessageBox(NULL,"Failed To Register The Window class.","ERROR",MB_OK|MB_ICONEXCLAMATION); return (NULL); } HWND hWindow = CreateWindowEx(NULL, "WndClassName","DialogClassSample",WS_OVERLAPPEDWINDOW | WS_VISIBLE,0, 0, 320, 200, NULL, NULL, GetModuleHandle(NULL), NULL); HWND ButtonWindow = CreateWindow("BUTTON",NULL, BS_TEXT|BS_PUSHBUTTON|WS_VISIBLE|WS_CHILD,50,50,30,20,hWindow,NULL,NULL,NULL); MSG msg; BOOL bDone = FALSE; while(!bDone) { if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { if (msg.message==WM_QUIT) { bDone = TRUE; } else { TranslateMessage(&msg); DispatchMessage(&msg); } } }

[Nilesh K]

1. SetWindowText should help you put the text over the button 2. You need to give your Window Procedure where in you can handle the messages (In a way that we use to do in SDK)

- Nilesh "Reading made Don Quixote a gentleman. Believing what he read made him mad" -George Bernard Shaw

[ask_you]

My Window procedure is: LRESULT CALLBACK WndProc(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam) { switch (uMsg) { case WM_COMMAND: { PostQuitMessage(0); return 0; } break; case WM_CLOSE: { PostQuitMessage(0); return 0; } break; } return DefWindowProc(hWnd,uMsg,wParam,lParam); } Here i have handled the WM_COMMAND message. but my problem is if i create 2 push buttons and i want seperate handling for the buttons, how do i distinguish the WM_COMMAND of one button from the WM_COMMAND of the second button?

[Nilesh K]

1.Low-order of WParam would be having the button identifier, compare that with the list of id's that you gave at the time of creation 2. Compare your button handle with in coming hwnd parameter:)

- Nilesh "Reading made Don Quixote a gentleman. Believing what he read made him mad" -George Bernard Shaw

[ask_you]

how do i compare low-order of WParam. i did not create any list of ids. i checked the low-order of WParam. it outputs 0. Secondly, how do i compare the handle. The button handle is declared in WinMain() and i need to compare in WndProc(i m not able to get the button handle in WinProc)

[Nilesh K]

1. The LOWORD macro retrieves the low-order word from the specified value. 2. Instead of using createwindow try using create of CWnd this would allow you to set the control's id. Store thos id's in some array and check them in your wndproc function.

- Nilesh "Reading made Don Quixote a gentleman. Believing what he read made him mad" -George Bernard Shaw