MFC实现颜色条渐变双色（蓝色变成绿色变成红色）

[{"title":"（ 32 个子文件 8.47MB ） MFC实现颜色条渐变双色（蓝色变成绿色变成红色）","children":[{"title":"TestColBar","children":[{"title":"TestColBar.sln <span style='color:#111;'> 895B </span>","children":null,"spread":false},{"title":"TestColBar.suo <span style='color:#111;'> 9.00KB </span>","children":null,"spread":false},{"title":"debug","children":[{"title":"TestColBar.ilk <span style='color:#111;'> 889.38KB </span>","children":null,"spread":false},{"title":"TestColBar.pdb <span style='color:#111;'> 3.14MB </span>","children":null,"spread":false},{"title":"TestColBar.exe <span style='color:#111;'> 108.00KB </span>","children":null,"spread":false}],"spread":true},{"title":"TestColBar","children":[{"title":"ReadMe.txt <span style='color:#111;'> 2.75KB </span>","children":null,"spread":false},{"title":"res","children":[{"title":"TestColBar.rc2 <span style='color:#111;'> 366B </span>","children":null,"spread":false},{"title":"TestColBar.ico <span style='color:#111;'> 21.12KB </span>","children":null,"spread":false}],"spread":true},{"title":"TestColBar.vcproj.PC-201507231721.Administrator.user <span style='color:#111;'> 1.39KB </span>","children":null,"spread":false},{"title":"stdafx.h <span style='color:#111;'> 2.43KB </span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"vc80.idb <span style='color:#111;'> 683.00KB </span>","children":null,"spread":false},{"title":"mt.dep <span style='color:#111;'> 67B </span>","children":null,"spread":false},{"title":"TestColBar.obj <span style='color:#111;'> 19.91KB </span>","children":null,"spread":false},{"title":"TestColBar.pch <span style='color:#111;'> 12.88MB </span>","children":null,"spread":false},{"title":"TestColBar.res <span style='color:#111;'> 22.78KB </span>","children":null,"spread":false},{"title":"stdafx.obj <span style='color:#111;'> 263.78KB </span>","children":null,"spread":false},{"title":"BuildLog.htm <span style='color:#111;'> 6.75KB </span>","children":null,"spread":false},{"title":"TestColBarDlg.obj <span style='color:#111;'> 39.60KB </span>","children":null,"spread":false},{"title":"TestColBar.exe.embed.manifest <span style='color:#111;'> 936B </span>","children":null,"spread":false},{"title":"TestColBar.exe.embed.manifest.res <span style='color:#111;'> 1000B </span>","children":null,"spread":false},{"title":"TestColBar.exe.intermediate.manifest <span style='color:#111;'> 884B </span>","children":null,"spread":false},{"title":"vc80.pdb <span style='color:#111;'> 676.00KB </span>","children":null,"spread":false}],"spread":false},{"title":"stdafx.cpp <span style='color:#111;'> 141B </span>","children":null,"spread":false},{"title":"Resource.h <span style='color:#111;'> 682B </span>","children":null,"spread":false},{"title":"TestColBar.h <span style='color:#111;'> 465B </span>","children":null,"spread":false},{"title":"TestColBarDlg.cpp <span style='color:#111;'> 4.59KB </span>","children":null,"spread":false},{"title":"TestColBar.rc <span style='color:#111;'> 4.96KB </span>","children":null,"spread":false},{"title":"TestColBarDlg.h <span style='color:#111;'> 578B </span>","children":null,"spread":false},{"title":"TestColBar.aps <span style='color:#111;'> 57.01KB </span>","children":null,"spread":false},{"title":"TestColBar.cpp <span style='color:#111;'> 1.66KB </span>","children":null,"spread":false},{"title":"TestColBar.vcproj <span style='color:#111;'> 5.31KB </span>","children":null,"spread":false}],"spread":false},{"title":"TestColBar.ncb <span style='color:#111;'> 9.57MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]