c# - Drag Drop using SendMessage -

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this sounds funny..just little experiment.
wanted simulate drag drop of file on application/window using send message. possible?

i dont have code application on executable.

the application ip messenger.

what wanted use "send to" functionality send file .exe ,which will
find ipmessenger window , simulate drag drop thr code.

the user select file , right click "send to" .exe drag drop code.

**note: ip messenger supports drag-drop operation files

thx
amit

there wm_dropfiles message. guess use createtoolhelp32snapshot locate window ip messenger , build dropfiles structure send wm_dropfiles message.

the final link codeproject, on creating dropfiles structure: how implement drag , drop between program , explorer.

instead of using creattoolhelp32snapshot using findwindow function. here hwnd ip messenger directly, instead of cth32s, locate handle process.

when done create dropfiles structure. read comments on codeproject link in "initiating drag , drop" section more info of how.

and send sendmessage

sendmessage(ipmesshwnd, wm_dropfiles, (hdrop)&mydropfiles, 0);

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