left Mouse click WM_LBUTTONDOWN / WM_LBUTTONUP

[AUGE_OHR]

hi,

i found in c:\hmg.3.4.4\SOURCE\h_windows.prg

Code: Select all

      CASE nMsg == WM_LBUTTONDOWN
         _HMG_SYSDATA[ 193 ] := 1

      CASE nMsg == WM_LBUTTONUP
         _HMG_SYSDATA[ 193 ] := 0

so if i "hold" left Mouse click _HMG_SYSDATA[ 193 ] will be 1
now i want to use it to "move Control" but how to "monitor" _HMG_SYSDATA[ 193 ] until "Drop" ( WM_LBUTTONUP )