but LCL > SendMessage is not Windows SendMessage. Lazarus LCL SendMessage is > designed to work with Lazarus LCL, as it must be cross platform. >
I do know that as well with Delphi as with Lazarus/Windows and with Lazarus/GTK PostMessage is documented, designed and working equal: send a set of three 32 (64) bit values to the main thread of the process the application the thread calling PostMessage is a part of (while the Target-"Handle" needs to be taken from the (main) form's handle property). The received message is propagated via "Dispatch" in the forms "Dispatch" procedure. But I am astonished to find that SendMessage in fact leads to some code in the gtk interface unit. SendMessage in Windows in fact is documented to send a "Message" (three 32 (64) bit values" to a different process. Same does not need to be done in Lazarus (or Delphi). So this is nothing more than an encapsulation of a Windows OS API. I don't see how this (sending such a Message to a process that is not done in Lazarus) could be implemented in Linux in a useful way. Of course using a pipe or something like that could make this happen for two processes done with Lazarus, but AFAIK, there currently is no implementation for this. So what does SendMessage do in GTK and what is the difference between PostMessage and SendMessage ? (AFAIK, in Delphi and Lazarus-Windows there is none (but performance), if the target handle is associated to the same process.) The documentation and the wiki does not seem to provide this information. -Michael -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
