C + + Processing keyboard Input Method _c language

This article describes the C + + processing keyboard Input method, can achieve a simple keyboard input, shared for everyone to reference. The implementation methods are as follows:

Need to respond to WM_CHAR messages:

Copy Code code as follows:

#include <string>
static std::string str;

In the WM_CHAR:

Copy Code code as follows:

str = str + char (wParam);
:: InvalidateRect (hWnd, NULL, 0);
return 0;

In the WM_PAINT:

Copy Code code as follows:

Case WM_PAINT:
HDC = BeginPaint (hWnd, &ps);
TODO: Add any drawing code here ...
:: TextOut (hdc, 0, 0, str.c_str (), str.length ());
EndPaint (HWnd, &ps);
Break

I hope this article will help you with the C + + program design.