Only One of the pop up is Handled? - c++

Question

I am using win32 API to develop an Application.I am using WM_LBUTTONDOWN message to handle two operation .
If a click on button X I want to perform operation A.
a)If a double click occur on button X I want to perform operation C as well
that is operation A
followed by operation C.
But while implementing I can either perform operation Aor operation C.
case WM_LBUTTONDOWN:
{
overallClicks++;
left1.x = LOWORD(lParam);
left1.y = HIWORD(lParam);
wsprintf(waCoord, _T("my coordinates are (%i,%i)"), left1.x, left1.y);
if (click_count == 0)
{
SetTimer(hWnd, TIMER_ID, GetDoubleClickTime(), NULL);
}
click_count++;
if (fun()) {
//do something
}
else {
MessageBox(NULL, _T("yo"), _T("yo"), MB_OK);
}
return 0;
// dwLastClickTime= GetMessageTime();
//SetTimer(hWnd,0,GetDoubleClickTime(),0);
//break;
// handleDoubleClicks(hWnd, message, wParam, lParam, ptLastClickPos, dwLastClickTime);
}
case WM_TIMER:
{
HandleTimer(hWnd, message, wParam, lParam);
}
LRESULT HandleTimer(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
BOOL i = KillTimer(hWnd, TIMER_ID);
if (click_count == 1)
{
// wchar_t* ptr = ;
MessageBox(hWnd, waCoord, _T("Left mouse button click"), MB_OK);
}
else if (click_count == 2)
{
MessageBox(hWnd, waCoord, TEXT("I appear when double clicked"), MB_OKCANCEL);
}
else if (click_count == 3)
{
MessageBox(hWnd, waCoord, TEXT("I appear when triple clicked"), MB_OKCANCEL);
}
else if (click_count > 3) {
MessageBox(hWnd, waCoord, TEXT("I appear when rage clicked"), MB_OKCANCEL);
}
click_count = 0;
return 0;
}
I would like elaborate for example I am double clicking on disabled button I want to show pop up that I have double clicked as well as that button is disabled.

Answer 1

With the help of an answer from your previous case.
Because your code logic uses if...else... conditional statements. The way I can think of is to add an additional timer in the case of double-click to complete the action when clicked.
void CALLBACK f(HWND hwnd, UINT uMsg, UINT timerId, DWORD dwTime)
{
EnableWindow(hwndButton, 0);
}
...
LRESULT CALLBACK OwnerDrawButtonProc(HWND hWnd, UINT uMsg, WPARAM wParam,
LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
{
switch (uMsg)
{
case WM_TIMER:
{
KillTimer(hWnd, TIMER_ID);
if (click_count == 1)
{
wchar_t waCoord[20];
wsprintf(waCoord, _T("(%i,%i)"), point.x, point.y);
MessageBox(hWnd, waCoord, _T("Left mouse button click"), MB_OK);
SetTimer(NULL, 0, 100, (TIMERPROC)&f);
}
else if (click_count == 2)
{
SetTimer(NULL, 0, 100, (TIMERPROC)&f);
MessageBox(hWnd, TEXT("Double click"), TEXT("I appear when double clicked"), MB_OKCANCEL);
}
click_count = 0;
return 0;
}
break;
case WM_LBUTTONDOWN:
{
if (click_count == 0)
{
SetTimer(hWnd, TIMER_ID, GetDoubleClickTime(), NULL);
}
click_count++;
return 0;
}
break;
case WM_NCDESTROY:
RemoveWindowSubclass(hWnd, &OwnerDrawButtonProc, 1);
break;
}
return DefSubclassProc(hWnd, uMsg, wParam, lParam);
}
Remove the CS_DBLCLKS style when using the button control.
Updated:
Because the button is disabled, I'm sorry I didn't see this. In this way, the message of the parent window can only be used to determine whether the mouse coordinates are within the range of the button. If it is, double-click to perform operation C.
Only need to modify part of the code of the parent window:
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static RECT rc;
static POINT pt = { 0 };
rc.left = 10;
rc.top = 10;
rc.right = 110;
rc.bottom = 110;
switch (message)
{
case WM_CREATE:
{
hwndButton = CreateWindow(
L"BUTTON", // Predefined class; Unicode assumed
L"OK", // Button text
WS_TABSTOP | WS_VISIBLE | WS_CHILD | BS_DEFPUSHBUTTON , // Styles
10, // x position
10, // y position
100, // Button width
100, // Button height
hWnd, // Parent window
NULL, // No menu.
(HINSTANCE)GetWindowLongPtr(hWnd, GWLP_HINSTANCE),
NULL); // Pointer not needed.
DWORD class_style = GetClassLongPtr(hwndButton, GCL_STYLE);
SetClassLongPtr(hwndButton, GCL_STYLE, class_style & (~CS_DBLCLKS));
SetWindowSubclass(hwndButton, &OwnerDrawButtonProc, IDC_OWNERDRAWBUTTON, 0);
return TRUE;
}
case WM_TIMER:
{
KillTimer(hWnd, TIMER_ID);
if (click_count == 2)
{
MessageBox(hWnd, TEXT("Double click"), TEXT("I appear when double clicked"), MB_OKCANCEL);
}
click_count = 0;
return 0;
}
case WM_LBUTTONDOWN:
{
POINT p;
p.x = GET_X_LPARAM(lParam);
p.y = GET_Y_LPARAM(lParam);
if (PtInRect(&rc, p))
{
pt = p;
if (click_count == 0)
{
SetTimer(hWnd, TIMER_ID, GetDoubleClickTime(), NULL);
}
click_count++;
}
return 0;
}
...
Debug: