Mutually Exclusive Sections: Difference between revisions
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== Description == | == Description == | ||
This example was written for the forum user japheth. The original thread can be found [http://forums.winamp.com/showthread.php?s=&threadid=121645 here]. | This example was written for the forum user [[User:japheth|japheth]]. The original thread can be found [http://forums.winamp.com/showthread.php?s=&threadid=121645 here]. | ||
In this example the user can choose only one of the two sections. Unlike one-section he can choose none as well, but not both. | In this example the user can choose only one of the two sections. Unlike one-section he can choose none as well, but not both. | ||
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FunctionEnd</highlight-nsis> | FunctionEnd</highlight-nsis> | ||
[[ | [[Category:Code Examples]] | ||
Latest revision as of 20:14, 24 April 2010
| Author: KiCHiK (talk, contrib) |
Description
This example was written for the forum user japheth. The original thread can be found here.
In this example the user can choose only one of the two sections. Unlike one-section he can choose none as well, but not both.
The Script
# This example demonstrates how to control section selection. # It allows only one of two sections to be selected at any # given time, but unlike one-section, it allows nither # to be selected as well. # # Please note that the initial value will not be what you expect # it to be if you are are using InstType because InstType is taken # into consideration after the .onInit, where the initial state is # set, executes. # To use this code with InstType you will either have to specify # you first InstType to match the initial value you set in .onInit # (only StrCpy $1 ${sec1} is important in this case because the # other set the section and that will be done by InstType), or set # the initial section selection from .onSelChange when it is called # for the first time. Name example OutFile "mutually exclusive.exe" ComponentText "please choose zero or one but the default" !define SF_SELECTED 1 !define SF_SUBSEC 2 !define SF_SUBSECEND 4 !define SF_BOLD 8 !define SF_RO 16 !define SF_EXPAND 32 !define SECTION_OFF 0xFFFFFFFE Section "Required" SectionIn RO SectionEnd Section "i hate #2" sec1 SectionEnd Section "i hate #1" sec2 SectionEnd Function .onInit Push $0 StrCpy $R9 ${sec1} ; Gotta remember which section we are at now... SectionGetFlags ${sec1} $0 IntOp $0 $0 | ${SF_SELECTED} SectionSetFlags ${sec1} $0 SectionGetFlags ${sec2} $0 IntOp $0 $0 & ${SECTION_OFF} SectionSetFlags ${sec2} $0 Pop $0 FunctionEnd Function .onSelChange Push $0 StrCmp $R9 ${sec1} check_sec1 SectionGetFlags ${sec1} $0 IntOp $0 $0 & ${SF_SELECTED} IntCmp $0 ${SF_SELECTED} 0 done done StrCpy $R9 ${sec1} SectionGetFlags ${sec2} $0 IntOp $0 $0 & ${SECTION_OFF} SectionSetFlags ${sec2} $0 Goto done check_sec1: SectionGetFlags ${sec2} $0 IntOp $0 $0 & ${SF_SELECTED} IntCmp $0 ${SF_SELECTED} 0 done done StrCpy $R9 ${sec2} SectionGetFlags ${sec1} $0 IntOp $0 $0 & ${SECTION_OFF} SectionSetFlags ${sec1} $0 done: Pop $0 FunctionEnd
