diff options
Diffstat (limited to 'basicctrls_windows.c')
| -rw-r--r-- | basicctrls_windows.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/basicctrls_windows.c b/basicctrls_windows.c index eefd4f8..0c5659f 100644 --- a/basicctrls_windows.c +++ b/basicctrls_windows.c @@ -161,7 +161,30 @@ void setGroupSubclass(HWND hwnd, void *data) xpanic("error subclassing Group to give it its own event handler", GetLastError()); } -HWND newUpDown(HWND prevUpDown) +static LRESULT CALLBACK updownSubProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR id, DWORD_PTR data) +{ + NMHDR *nmhdr = (NMHDR *) lParam; + + switch (uMsg) { + case msgNOTIFY: + switch (nmhdr->code) { + case UDN_DELTAPOS: + spinboxUpDownClicked((void *) data, (NMUPDOWN *) lParam); + return FALSE; // allow change + } + return (*fv_DefSubclassProc)(hwnd, uMsg, wParam, lParam); + case WM_NCDESTROY: + if ((*fv_RemoveWindowSubclass)(hwnd, updownSubProc, id) == FALSE) + xpanic("error removing Spinbox up-down control subclass (which was for its own event handler)", GetLastError()); + return (*fv_DefSubclassProc)(hwnd, uMsg, wParam, lParam); + default: + return (*fv_DefSubclassProc)(hwnd, uMsg, wParam, lParam); + } + xmissedmsg("Spinbox up-down control", "updownSubProc()", uMsg); + return 0; // unreached +} + +HWND newUpDown(HWND prevUpDown, void *data) { HWND hwnd; HWND parent; @@ -183,5 +206,7 @@ HWND newUpDown(HWND prevUpDown) parent, NULL, hInstance, NULL); if (hwnd == NULL) xpanic("error creating up-down control for Spinbox", GetLastError()); + if ((*fv_SetWindowSubclass)(hwnd, updownSubProc, 0, (DWORD_PTR) data) == FALSE) + xpanic("error subclassing Spinbox up-down control to give it its own event handler", GetLastError()); return hwnd; } |