Child tables
From TeamDeveloperWiki
This page covers ChildTable tips & tricks.
Contents |
What message is send when a DropDown column item is selected (clicked)
When an item from a column dropdown list is selected, the message SAM_AnyEdit is send to the column message actions section.
How to hide the window displayed in the taskbar when a column dropdown list is opened
When you open the dropdown list of a table column, a window is shown on the Windows taskbar.
To get rid of this window use this code under the message actions of the table column
First declare these three WinApi functions in the external functions section
Library name: USER32.DLL
Function: FindWindowA
Export Ordinal: 0
Returns
Window Handle: HWND
Parameters
String: LPCSTR
String: LPCSTR
Function: GetWindowLongA
Export Ordinal: 0
Returns
Number: LONG
Parameters
Window Handle: HWND
Number: INT
Function: SetWindowLongA
Export Ordinal: 0
Returns
Number: LONG
Parameters
Window Handle: HWND
Number: INT
Number: LONG
Also declare these constants
Number: GWL_EXSTYLE = -20 Number: WS_EX_TOOLWINDOW = 0x80
Here the actual code for removing the window from the taskbar
On SAM_DropDown
Set hWndDropDown = FindWindowA( "Gupta:DropDown", "" )
If NOT hWndDropDown
! Maybe it is an older TD version, so search for another classname
Set hWndDropDown = FindWindowA( ":DropDown", "" )
If hWndDropDown
If NOT GetWindowLongA( hWndDropDown,GWL_EXSTYLE ) & WS_EX_TOOLWINDOW
Call SetWindowLongA( hWndDropDown, GWL_EXSTYLE, GetWindowLongA( hWndDropDown,GWL_EXSTYLE ) | WS_EX_TOOLWINDOW )
Here you can download a sample:
