Styjun

I am able to create a window with a Tile. How can I add now new text line inside the Window ?

All what I succeed to did was only to change the title of the window which is not what I want . I want to add some text line in the window box.

SendMessage function was not working for me.

Please if somebody has some tip for this to tell me !

#include <windows.h>

const char g_szClassName[] = "myWindowClass";
//The Window Procedure
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)

 switch(msg)
 
 case WM_CLOSE:
 DestroyWindow(hwnd);
 break;
 case WM_DESTROY:
 PostQuitMessage(0);
 break;
 default:
 return DefWindowProc(hwnd, msg, wParam, lParam);
 
 return 0;


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
 LPSTR lpCmdLine, int nCmdShow)

 WNDCLASSEX wc;
 HWND hwnd;
 MSG Msg;

 // Registering the Window Class
 wc.cbSize = sizeof(WNDCLASSEX);
 wc.style = 0;
 wc.lpfnWndProc = WndProc;
 wc.cbClsExtra = 0;
 wc.cbWndExtra = 0;
 wc.hInstance = hInstance;
 wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
 wc.hCursor = LoadCursor(NULL, IDC_ARROW);
 wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
 wc.lpszMenuName = NULL;
 wc.lpszClassName = g_szClassName;
 wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

 if(!RegisterClassEx(&wc))
 
 MessageBox(NULL, "Window Registration Failed!", "Error!",
 MB_ICONEXCLAMATION 


 hwnd = CreateWindowEx(
 WS_EX_CLIENTEDGE,
 g_szClassName,
 "Title of window",
 WS_OVERLAPPEDWINDOW,
 1390, 540, 240, 120,
 NULL, NULL, hInstance, NULL);

 if(hwnd == NULL)
 MB_OK);
 return 0;
 

 ShowWindow(hwnd, nCmdShow);
 UpdateWindow(hwnd);



 // The Message Loop
 while(GetMessage(&Msg, NULL, 0, 0) > 0)
 
 TranslateMessage(&Msg);
 DispatchMessage(&Msg);
 
 return Msg.wParam;

To draw text in the client area, your wndProc would normally use something like DrawText or TextOut. You typically do that in response to WM_PAINT.

To be able to respond to an external message, you'd typically send a message containing the text. The window would receive that, store (a copy of) the text it received, and (usually) invalidate the window's rectangle. Since the window is now invalidated, the next chance it gets, Windows will send your window a WM_PAINT message (and then you'll draw out the text).

Handling the WM_PAINT message and drawing the text directly on the window's HDC is one option.

Another option is to create a child STATIC control in your window, and then you can assign the desired text to that child using SetWindowText() or the WM_SETTEXT message. No manual drawing needed.