WM_COPYDATA example (access application outside application)

[Gintaras]

Look in MSDN.
wParam must be sender window handle or 0.
lParam must be &cds.
cds.cbData must be specified. It is length of string, probably +1.

Macro Macro2104

Code:

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int hwnd=win("XYplorer")
if(!hwnd)    
,ret

str s="/script=''f:\__windows_folders\_user\desk\test.xys''"

COPYDATASTRUCT cds
cds.dwData=4194305
cds.lpData=s
cds.cbData=s.len+1

SendMessage(hwnd WM_COPYDATA 0 &cds)

Maybe the string must be Unicode UTF-16.
Macro Macro2104

Code:

Copy      Help

int hwnd=win("XYplorer")
if(!hwnd)    
,ret

BSTR b="/script=''f:\__windows_folders\_user\desk\test.xys''"

COPYDATASTRUCT cds
cds.dwData=4194305
cds.lpData=b.pstr
cds.cbData=b.len*2+2

SendMessage(hwnd WM_COPYDATA 0 &cds)