win32 GUI display text from char array variable in window

Question

I wish to display the characters from a character array onto a window using win32. The second parameter type is wrong. How can i solve this? Thanks

char data[5]="hello";

CreateWindow(TEXT("STATIC"), TEXT(data), WS_VISIBLE | WS_CHILD | 
                WS_BORDER|ES_AUTOVSCROLL,
                 10, 50,300,300,hWnd, (HMENU) none, NULL, NULL);

Answer 1

const TCHAR* data = TEXT("hello");    // LPCTSTR 

CreateWindow(TEXT("STATIC"), data, WS_VISIBLE | WS_CHILD | 
            WS_BORDER|ES_AUTOVSCROLL,
             10, 50,300,300,hWnd, (HMENU) none, NULL, NULL);

Your code is not compiled in Unicode configuration. Using generic TCHAR type should solve the problem.

Another way, if data is char*, using ATL conversion macros (http://msdn.microsoft.com/en-us/library/87zae4a3.aspx):

#include <atlstr.h>

const char* data = "hello";

CreateWindow(TEXT("STATIC"), CA2T(data), WS_VISIBLE | WS_CHILD | 
            WS_BORDER|ES_AUTOVSCROLL,
             10, 50,300,300,hWnd, (HMENU) none, NULL, NULL);

And finally, for completeness, you can call ANSI API version explicitly:

const char* data = "hello";

CreateWindowA("STATIC", data, WS_VISIBLE | WS_CHILD | 
            WS_BORDER|ES_AUTOVSCROLL,
             10, 50,300,300,hWnd, (HMENU) none, NULL, NULL);