| UID | title | description | helpviewer_keywords | old-location | tech.root | ms.assetid | ms.date | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | req.redist | ms.custom | f1_keywords | dev_langs | topic_type | api_type | api_location | api_name | |||||||||||||
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NF:winddi.EngMulDiv |
EngMulDiv function (winddi.h) |
The EngMulDiv function multiplies two 32-bit values and then divides the 64-bit result by a third 32-bit value. |
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display\engmuldiv.htm |
display |
e1d9d790-4038-445c-a1ea-fe689cb0e694 |
12/05/2018 |
EngMulDiv, EngMulDiv function [Display Devices], display.engmuldiv, gdifncs_0d175bf5-b421-43e5-acc5-a11299b0d990.xml, winddi/EngMulDiv |
winddi.h |
Winddi.h |
Universal |
Available in Windows 2000 and later versions of the Windows operating systems. |
Win32k.lib |
Win32k.sys |
Windows |
19H1 |
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The EngMulDiv function multiplies two 32-bit values and then divides the 64-bit result by a third 32-bit value.
Specifies the 32-bit signed multiplicand.
Specifies the 32-bit signed multiplier.
Specifies the 32-bit signed divisor by which the result of a*b is to be divided.
EngMulDiv returns the signed 32-bit result of the multiplication and division. The return value is rounded up or down to the nearest integer.
Drivers should not pass a zero divisor to EngMulDiv.