Following is dllmain.c
Code:
#define WIN32_LEAN_AND_MEAN /* speed up */
#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>
#include <tchar.h>
#define _WINDLL_
#include "WINDLL.h"
LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
LPSTR String;
WINDLLAPI int WINAPI SampleFunction(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow)
{
static char szAppName[] = "winhello";
HWND hwnd;
MSG msg;
WNDCLASSEX wndclass;
String = lpCmdLine;
/* Fill in WNDCLASSEX struct members */
wndclass.cbSize = sizeof(wndclass);
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = WndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
wndclass.lpszClassName = szAppName;
wndclass.lpszMenuName = NULL;
/* Register a new window class with Windows */
RegisterClassEx(&wndclass);
/* Create a window based on our new class */
hwnd = CreateWindow(szAppName, "Hello, world!",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL);
/* Show and update our window */
ShowWindow(hwnd, iCmdShow);
UpdateWindow(hwnd);
/* Retrieve and process messages until we get WM_QUIT */
while ( GetMessage(&msg, NULL, 0, 0) ) {
TranslateMessage(&msg); /* for certain keyboard messages */
DispatchMessage(&msg); /* send message to WndProc */
}
/* Exit with status specified in WM_QUIT message */
return msg.wParam;
}
/* Window procedure */
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) {
PAINTSTRUCT ps;
HDC hdc;
/* Switch according to what type of message we have received */
switch ( iMsg ) {
case WM_PAINT:
/* We receive WM_PAINT every time window is updated */
hdc = BeginPaint(hwnd, &ps);
TextOut(hdc, 100, 100, String, 13);
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
/* Window has been destroyed, so exit cleanly */
PostQuitMessage(0);
return 0;
}
/* Send any messages we don't handle to default window procedure */
return DefWindowProc(hwnd, iMsg, wParam, lParam);
}
Originally Posted by tabstop
