Windows 10 not responding to uiAction 47 (SPI_SETWORKAREA) for user32.dll's SystemParametersInfo(uAction, uParam, lpvParam, fuWinIni) -

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does have information on why windows 10 no longer allows set custom workarea using systemparametersinfo? using reserve screen space dock/bar applications. had luck getting working?

for reference code on question works set custom work area in windows 8.1, 8, 7, , xp, no longer works on windows 10. how can resize desktop work area using spi_setworkarea flag?

my alternative options seem using shappbarmessage (not preferable not allow modifying form opacity knowledge), or using setwindowshookex wh_callwndproc, seems require .dll injection external processes?

i had similar issue, old program correctly set work area in windows 7 stopped working in windows 10.

what worked me changing 'fwinini' argument (the last argument) spif_change spif_updateinifile.

so, worked doesn't anymore:

private const uint spif_sendwininichange = 2; private const uint spif_updateinifile = 1; private const uint spif_change = spif_updateinifile | spif_sendwininichange; systemparametersinfo(spi_setworkarea, 0, ref rect, spif_change);

what works correctly now:

private const uint spif_sendwininichange = 2; private const uint spif_updateinifile = 1; private const uint spif_change = spif_updateinifile | spif_sendwininichange; systemparametersinfo(spi_setworkarea, 0, ref rect, spif_updateinifile);

hopefully works well.


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