bool MainWindowEx::winEvent(MSG *msg, long *result)
{
bool fCallDWP = true;
BOOL fDwmEnabled = FALSE;
LRESULT lRet = 0;
HRESULT hr = S_OK;
HWND hWnd = msg->hwnd;
UINT message = msg->message;
WPARAM wParam = msg->wParam;
LPARAM lParam = msg->lParam;
// Winproc worker for custom frame issues.
hr = DwmIsCompositionEnabled(&fDwmEnabled);
if (!SUCCEEDED(hr) || !fDwmEnabled)
{
qDebug() << "DWM not enabled";
return false;
}
fCallDWP = !DwmDefWindowProc(hWnd, message, wParam, lParam, &lRet);
switch(message)
{
// 鼠标在窗口边缘时，缩放可用
case WM_NCHITTEST:
{
return hitTestNCA(msg, result);
}
// Handle window activation.
case WM_ACTIVATE:
{
// Extend the frame into the client area.
MARGINS margins = { -1, -1, -1, -1 };
hr = DwmExtendFrameIntoClientArea(hWnd, &margins);
if (!SUCCEEDED(hr))
{
// Handle error.
qDebug() << "Extend frame to Client Area error";
}
fCallDWP = true;
lRet = 0;
};
break;
// 缩放
case WM_NCCALCSIZE:
{
if(wParam == TRUE)
{
// Calculate new NCCALCSIZE_PARAMS based on custom NCA inset.
NCCALCSIZE_PARAMS *pncsp = reinterpret_cast<NCCALCSIZE_PARAMS*>(lParam);
pncsp->rgrc[0].left = pncsp->rgrc[0].left - 1;
pncsp->rgrc[0].top = pncsp->rgrc[0].top - 1;
pncsp->rgrc[0].right = pncsp->rgrc[0].right + 1;
pncsp->rgrc[0].bottom = pncsp->rgrc[0].bottom + 1;
QRect rect;
rect.setLeft(pncsp->rgrc[0].left);
rect.setTop(pncsp->rgrc[0].top);
rect.setRight(pncsp->rgrc[0].right);
rect.setBottom(pncsp->rgrc[0].bottom);
emit sizeChanged();
lRet = 0;
// No need to pass the message on to the DefWindowProc.
fCallDWP = false;
}
};
break;
case WM_NCMOUSELEAVE:
{
// if( uRow ==0 || uRow == 2 || uCol == 0 || uCol == 2)
// emit hoverLeave();
// else
// emit hoverEnter();
if(!this->geometry().contains(QCursor::pos()))
{
// QTimer::singleShot(400, this, SIGNAL(hoverLeave()));
emit hoverLeave();
}
};
break;
case WM_NCMOUSEMOVE:
{
emit hoverEnter();
};
break;
//最大化/最小化
case WM_GETMINMAXINFO:
{
MINMAXINFO *mmi = (MINMAXINFO*)lParam;
QRect rect = QApplication::desktop()->availableGeometry();
// mmi->ptMaxSize.x = rect.width();
// mmi->ptMaxSize.y = rect.height();
mmi->ptMaxPosition.x = 0;
mmi->ptMaxPosition.y = 0;
mmi->ptMinTrackSize.x = 400;
mmi->ptMinTrackSize.y = 260;
mmi->ptMaxTrackSize.x = rect.width();
mmi->ptMaxTrackSize.y = rect.height();
lRet = 0;
fCallDWP = false;
};
break;
}
if (!fCallDWP)
*result = lRet;
return !fCallDWP;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static int iCount;
static POINT pt[MAX_POINTS * 2];
HDC hdc;
PAINTSTRUCT ps;
int i, j;
TCHAR szBuffer[256];
POINT screen, client;
LRESULT hit;
switch (message)
{
case WM_LBUTTONDOWN:
iCount = 0;
InvalidateRect(hwnd, NULL, TRUE);
return 0;
case WM_MOUSEMOVE:
if (wParam & MK_LBUTTON && iCount< MAX_POINTS) {
pt[iCount].x = LOWORD(lParam);
pt[iCount++].y = HIWORD(lParam);
hdc = GetDC(hwnd);
SetPixel(hdc, LOWORD(lParam), HIWORD(lParam), 0);
ReleaseDC(hwnd, hdc);
}
return 0;
case WM_LBUTTONUP:
InvalidateRect(hwnd, NULL, FALSE);
return 0;
case WM_NCHITTEST:
return (LRESULT) HTNOWHERE;
case WM_NCRBUTTONDOWN:
screen.x = client.x = LOWORD(lParam);
screen.y = client.y = HIWORD(lParam);
ScreenToClient(hwnd, &client);
wsprintf(szBuffer, TEXT("Screen: (%d,%d) Client(%d,%d)"), screen.x, screen.y, client.x, client.y);
//MessageBox(NULL, szBuffer, TEXT("ScreenToClient"), MB_OK);
hdc = GetDC(hwnd);
TextOut(hdc, 0, 0, szBuffer, lstrlen(szBuffer));
ReleaseDC(hwnd, hdc);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
SetCursor(LoadCursor(NULL, IDC_WAIT));
ShowCursor(TRUE);
for (i = 0; i < iCount - 1; i++) {
for( j = i; j < iCount; j++) {
MoveToEx(hdc, pt[i].x, pt[i].y, NULL);
LineTo(hdc, pt[j].x, pt[j].y);
}
}
ShowCursor(FALSE);
SetCursor(LoadCursor(NULL, IDC_ARROW));
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
//return DefWindowProc(hwnd, message, wParam, lParam);
if( DwmDefWindowProc(hwnd, message, wParam, lParam, &hit) ) {
return hit;
} else {
return DefWindowProc(hwnd, message, wParam, lParam);
}
}
