如何在vb中实现对显示属性中颜色和屏幕区域的监测?
我写的界面是在1024*768,32位真彩下的,我想在程序启动的时候监测显示属性是不是1024*768,32位,如果是,程序运行,不是提示用户修改,请高手指点如何实现。
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那得用api函数了!!
const spi_getworkarea = 48
private declare function systemparametersinfo lib "user32" alias "systemparametersinfoa" (byval uaction as long, byval uparam as long, lpvparam as any, byval fuwinini as long) as long
private declare function lstrcpy lib "kernel32" alias "lstrcpya" (lpstring1 as any, lpstring2 as any) as long
const cchdevicename = 32
const cchformname = 32
const dm_pelswidth = &h80000
const dm_pelsheight = &h100000
const dm_bitsperpel = &h40000
private type winmode
dmdevicename as string * cchdevicename
dmspecversion as integer
dmdriverversion as integer
dmsize as integer
dmdriverextra as integer
dmfields as long
dmorientation as integer
dmpapersize as integer
dmpaperlength as integer
dmpaperwidth as integer
dmscale as integer
dmcopies as integer
dmdefaultsource as integer
dmprintquality as integer
dmcolor as integer
dmduplex as integer
dmyresolution as integer
dmttoption as integer
dmcollate as integer
dmformname as string * cchformname
dmunusedpadding as integer
dmbitsperpel as integer
dmpelswidth as long
dmpelsheight as long
dmdisplayflags as long
dmdisplayfrequency as long
end type
private declare function changedisplaysettings lib "user32" alias "changedisplaysettingsa" (byval lpwinmode as long, byval dwflags as long) as long
public function setdisplaymode(width as integer, height as integer, color as integer) as long
dim newwinmode as winmode
dim p as long
with newwinmode
.dmsize = 122
if color = -1 then
.dmfields = dm_pelswidth or dm_pelsheight
else
.dmfields = dm_pelswidth or _
dm_pelsheight or dm_bitsperpel
end if
.dmpelswidth = width
.dmpelsheight = height
if color <> -1 then
.dmbitsperpel = color
end if
end with
p = lstrcpy(newwinmode, newwinmode)
setdisplaymode = changedisplaysettings(p, 0)
end function


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