GetWindowInfo: Difference between revisions
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(WINDOWINFO is 60 bytes, not 56) |
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== Description == | == Description == | ||
Quick and dirty example of how to use System plug-in to call GetWindowInfo. | Quick and dirty example of how to use System plug-in to call GetWindowInfo. | ||
'''Warning: before September 2019, this example contained a buffer overrun error that could cause crashes. <code>sizeof(WINDOWINFO)</code> is 60, not 56.''' | |||
== GetWindowInfo Example.nsi == | == GetWindowInfo Example.nsi == | ||
<highlight-nsis> | <highlight-nsis> | ||
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Section Main1 | Section Main1 | ||
System::Alloc | System::Alloc 60 | ||
Pop $0 | Pop $0 | ||
System::Call "*$0(i | System::Call "*$0(i 60)" | ||
System::Call "User32::GetWindowInfo(i $HWNDPARENT,i r0) i .r1" | System::Call "User32::GetWindowInfo(i $HWNDPARENT,i r0) i .r1" | ||
Latest revision as of 22:14, 19 September 2019
Author: Zinthose (talk, contrib) |
Description
Quick and dirty example of how to use System plug-in to call GetWindowInfo.
Warning: before September 2019, this example contained a buffer overrun error that could cause crashes. sizeof(WINDOWINFO)
is 60, not 56.
GetWindowInfo Example.nsi
OutFile "GetWindowInfo Example.exe" ShowInstDetails show !include WinMessages.nsh Section Main1 System::Alloc 60 Pop $0 System::Call "*$0(i 60)" System::Call "User32::GetWindowInfo(i $HWNDPARENT,i r0) i .r1" DetailPrint "RC=$1" ## rcWindow IntOp $R0 $0 + 4 System::Call "*$R0(i .r1,i .r2,i .r3,i .r4)" DetailPrint "rcWindow.left=$1" DetailPrint "rcWindow.top=$2" DetailPrint "rcWindow.right=$3" DetailPrint "rcWindow.bottom=$4" ## rcClient IntOp $R0 $0 + 20 System::Call "*$R0(i .r1,i .r2,i .r3,i .r4)" DetailPrint "rcClient.left=$1" DetailPrint "rcClient.top=$2" DetailPrint "rcClient.right=$3" DetailPrint "rcClient.bottom=$4" ## dwStyle IntOp $R0 $0 + 36 System::Call "*$R0(i .r1)" intfmt $1 "0x%08X" $1 DetailPrint "dwStyle=$1" ## dwExStyle IntOp $R0 $0 + 40 System::Call "*$R0(i .r1)" intfmt $1 "0x%08X" $1 DetailPrint "dwExStyle=$1" ## dwWindowStatus IntOp $R0 $0 + 44 System::Call "*$R0(i .r1)" intfmt $1 "0x%08X" $1 DetailPrint "dwWindowStatus=$1" ## cxWindowBorders IntOp $R0 $0 + 48 System::Call "*$R0(i .r1)" intfmt $1 "%u" $1 DetailPrint "cxWindowBorders=$1" ## cyWindowBorders IntOp $R0 $0 + 52 System::Call "*$R0(i .r1)" intfmt $1 "%u" $1 DetailPrint "cyWindowBorders=$1" System::Free $0 SectionEnd