Hi,

I hope this is the appropriate group.

I have an app that uses SendMessage (thanks, Peter Below) to send data
to a waiting app.

So far SendMessage with Data and "Enter" works fine. I want to be able
to Tab to the next data field in the waiting app.

The following works fine to send a CrLf to a Memo on the waiting app

SendMessage(hFocusWin,WM_CHAR,13,0);

Using the following it sends a Tab-character [no real surprise there
:-)] and indents the text rather than tabbing to the next field.

SendMessage(hFocusWin,WM_CHAR,9,0);

What should I be sending here to force the waiting app to move focus
to the next input field?

I have checked the API help but cannot seem to work out how to do
this. I looked at WM_SYSCHAR but that appears to be used in
conjunction with the Alt key.

I would also like to be able to send Alt+M for Menu etc too if you can
help with that.

If a Memo control returns DLGC_WANTTAB in response to the WM_GETDLGCODE
message (in VCL terms, setting the TMemo.WantTabs property to true), then
the Memo accepts tab characters as typed input, and thus you can't switch to
another field by tabbing when the Memo has focus.

Well, first off, is the waiting app a VCL app or not? Tab ordering is
controlled by the application framework, not the OS. So it makes a big
difference what kind of framework is being used by the application.

Gambit

orangecat@cableone.net wrote:

Peter Below (TeamB) wrote: